1/*
  2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
  3 * All rights reserved.
  4 *
  5 * This program is free software; you can redistribute it and/or modify
  6 * it under the terms of the GNU General Public License as published by
  7 * the Free Software Foundation; either version 2 of the License, or
  8 * (at your option) any later version.
  9 *
 10 * This program is distributed in the hope that it will be useful,
 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13 * GNU General Public License for more details.
 14 *
 15 * You should have received a copy of the GNU General Public License along
 16 * with this program; if not, write to the Free Software Foundation, Inc.,
 17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 18 *
 19 * File: wctl.h
 20 *
 21 * Purpose:
 22 *
 23 * Author: Jerry Chen
 24 *
 25 * Date: Jun. 27, 2002
 26 *
 27 */
 28
 29#ifndef __WCTL_H__
 30#define __WCTL_H__
 31
 32#include "ttype.h"
 33#include "tether.h"
 34#include "device.h"
 35
 36/*---------------------  Export Definitions -------------------------*/
 37
 38#define IS_TYPE_DATA(pMACHeader)                                                        \
 39    ((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_DATA)
 40
 41#define IS_TYPE_MGMT(pMACHeader)                                                        \
 42    ((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_MGMT)
 43
 44#define IS_TYPE_CONTROL(pMACHeader)                                                     \
 45    ((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_CTL)
 46
 47#define IS_FC_MOREDATA(pMACHeader)                                                      \
 48    ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREDATA) == FC_MOREDATA)
 49
 50#define IS_FC_POWERMGT(pMACHeader)                                                      \
 51    ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_POWERMGT) == FC_POWERMGT)
 52
 53#define IS_FC_RETRY(pMACHeader)                                                         \
 54    ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_RETRY) == FC_RETRY)
 55
 56#define IS_FC_WEP(pMACHeader)                                                           \
 57    ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_WEP) == FC_WEP)
 58
 59#ifdef __BIG_ENDIAN
 60
 61#define IS_FRAGMENT_PKT(pMACHeader)                                                     \
 62    (((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) != 0) |                  \
 63     ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x0F00) != 0))
 64
 65#define IS_FIRST_FRAGMENT_PKT(pMACHeader)                                               \
 66    ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x0F00) == 0)
 67
 68#else
 69
 70#define IS_FRAGMENT_PKT(pMACHeader)                                                     \
 71    (((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) != 0) |                  \
 72     ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x000F) != 0))
 73
 74#define IS_FIRST_FRAGMENT_PKT(pMACHeader)                                               \
 75    ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x000F) == 0)
 76
 77#endif//#ifdef __BIG_ENDIAN
 78
 79#define IS_LAST_FRAGMENT_PKT(pMACHeader)                                                \
 80    ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) == 0)
 81
 82#define IS_CTL_PSPOLL(pMACHeader)                                                       \
 83    ((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL)
 84
 85
 86#define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo) {   \
 87    if ((uVar) >= ((uModulo) - 1))                  \
 88        (uVar) = 0;                                 \
 89    else                                            \
 90        (uVar)++;                                   \
 91}
 92
 93/*---------------------  Export Classes  ----------------------------*/
 94
 95/*---------------------  Export Variables  --------------------------*/
 96
 97/*---------------------  Export Functions  --------------------------*/
 98
 99BOOL WCTLbIsDuplicate(PSCache pCache, PS802_11Header pMACHeader);
100BOOL WCTLbHandleFragment(PSDevice pDevice, PS802_11Header pMACHeader,
101			 unsigned int cbFrameLength, BOOL bWEP, BOOL bExtIV);
102unsigned int WCTLuSearchDFCB(PSDevice pDevice, PS802_11Header pMACHeader);
103unsigned int WCTLuInsertDFCB(PSDevice pDevice, PS802_11Header pMACHeader);
104
105#endif /* __WCTL_H__ */